Rotary well-boring box and pin.



M. H. WHITTIER. ROTARY WELL BORING BOX AND PIN.

APPLIOATION FILED JULY 1, 1908,

964.353., Patented July 12,1910.

MERICOS H. WHITTIER, OF LOS ANGELES, CALIFORNIA.

ROTARY WELL-BORING BOX AND PIN.

Specification of Letters Patent. Patented July l2, 19M).

Application tiled July 1, 1908. Serial No. 441,487.

To all whom it may concern:

Be it known that I, MERIoos H.WH1TT1ER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Rotary VVell-Boring Box and Pin, of which the following isa specification.

This invention relates to an appliance to be used in boring wells with rotary wellboring apparatus.

In the usual practice, the rotary cutter in such apparatus is connected with the mechanism that rotates. the same, by means of a tube or pipe which is connected with a source of water supply; and water is pumped through the pipe to remove theborings by carrying the same up outside the pipe and discharging them at the surface of the earth. The pipe employed for this purpose usually consists of sections of wellcasing which are screwed together by means of a collar, sections being added from time to time to increase the length of the tube as the well deepens.

It is necessary that t-he cutter be withdrawn from the well at frequent intervalsY for renewal Aowing to the great wear that occurs thereon in the operation of drilling the well. At each removal of the cutter the tubular sections mu'st be unscrewed one from the other, and again screwed together upon' replacing the-new cutter in the Well. Heretofore a great loss of time and money has occurred in such operations through the rapidity with which the screw-threaded sections become worn by the frequent screwing and unscrewing of the same.

An object of this invention is to do away with this loss.

Another object is to facilita-te the operation of taking apart and putting together the well-casing or other tubular means for rotating the cutter.

The accompanying drawings illustrate the invention.

Figure l is a fragmental axial section of a rotary pipe of a well-boring apparatus constructed in accordance with this invention. Ends of two sect-ions of well-casing are shown connected by the newly-invented box and pin. Fig; 2 is a view of the same with the box and pin unscrewed from each other.

l designates a longitudinallyperforated box, and 2 a longitudinally-pertorated pin; said box and pin being adapted to screw onto sections of well-casing 3 and 3', and also being adapted to screw together, thus to form with the sections of well-casing 3 and 3 a continuous conduit.

4 and 4 respectively designate screwthreaded seats or sockets in one end of the box l and of the pin 2.

. 5 is the screw-threaded taper-pin of the pin 2, the same having a coarse thread, and being of the usual form of taper-pin employed in well-drilling tools except that it is tubular.

6 designates the screw-threaded taper-seat in the box 1 Vfor the taper-pin 5, the same being of the usual construction of taperseats in boxes of well tools.

7 designates a longitudinal bore extending through the taper-pin 5 to the screw-threaded seat or socket 4.

8 designates a longitudinal bore extending fromthe taper-pin-seat 6 to the screwthreaded socket or seat 4 of the box l.

In practice, the box and pin will be constructed in the ordinary manner of the 'box or pin of well-drilling tools, excepting the seat 4 and the bore 8 in the box, and the seat 4 and bore 7 in the pin. The well-drillerV will fit the well-casing sections with boxes and pins, screwing a box upon one end of one section, and a pin upon the other end of said section, and so on. As the Work of drilling proceeds, the sections may be screwed onto and unscrewed from each other without screwing and unscrewing the pipe-sections, 'so that the integrity of the thread on-`the pipe-sections will be maintained.

By the means shown the life of the rotary cutter pipe is extended indefinitely, and the' labor and time required to screw and unscrew a joint is minimized.

I claim: A rotary well-boring box and pin com= "l'oo p rising the combination with sections of plpe having externally screw-threaded ends, of boxes tightly screw-seated upon the ends of the pipe, those on one end having tapered internally coarsely screw-threaded sockets and longitudinal perforations, and those on the opposite ends having tapered externally coarsely screw-threaded pins and longitu-` dinal perforations; so that the sections of pipe may be screwed together to form a hollow stem of the desired length by screwing the phins JJinto the socets, and s3 thzt he 25th day of June, 1908.

en s o i e ma e connecte an iscontected bly gperatlirng the pins in the sock' MERICOS H' WHITTIER' 5 ets thereby 'saving the threads of the pipe- In presence ofsections from wear. JAMES R. ToWNsEND,

In testimony whereof, I have hereunto set L. BELLE RICE.

my hand at Los Angeles, California, this 

